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be quiet! Silent Wings 4 120mm PWM High-Speed vs Noctua NF-A12x25 PWM: Comparison

be quiet! Silent Wings 4 120mm PWM High-Speed and Noctua NF-A12x25 PWM separate most on static pressure: be quiet! Silent Wings 4 120mm PWM High-Speed at 3.96 mmH2O, Noctua NF-A12x25 PWM at 2.34 mmH2O, 41% in favour of be quiet! Silent Wings 4 120mm PWM High-Speed. Airflow splits them by another 22%, again favouring be quiet! Silent Wings 4 120mm PWM High-Speed. They match on 5 other specifications, including fan size, bearing type and fan thickness.

be quiet! Silent Wings 4 120mm PWM High-Speed (2500 RPM/76.7 CFM/31.2 dBA/6-Pole Motor/Fluid Dynamic Bearing 300,000hr)
be quiet!be quiet! Silent Wings 4 120mm PWM High-Speed
Noctua NF-A12x25 PWM (120mm/58 CFM/2.34 mmH2O Static Pressure/2000 RPM Max/22.6 dBA Max/SSO2 Bearing 150,000hr Rated/No RGB/PWM/6-Year Warranty)
NoctuaNoctua NF-A12x25 PWM

Specs

Specification
be quiet! Silent Wings 4 120mm PWM High-Speed (2500 RPM/76.7 CFM/31.2 dBA/6-Pole Motor/Fluid Dynamic Bearing 300,000hr)
be quiet! Silent Wings 4 120mm PWM High-Speed
Noctua NF-A12x25 PWM (120mm/58 CFM/2.34 mmH2O Static Pressure/2000 RPM Max/22.6 dBA Max/SSO2 Bearing 150,000hr Rated/No RGB/PWM/6-Year Warranty)
Noctua NF-A12x25 PWM
Fan Size120 mm120 mm
Brandbe quiet!Noctua
ModelSilent Wings 4 120mm PWM High-SpeedNF-A12x25 PWM
Bearing TypeFluid DynamicFluid Dynamic
Fan Thickness25 mm25 mm
Static Pressure3.96 mmH2O2.34 mmH2O-41%
Max Speed2500 RPM2000 RPM-20%
Noise Level31.2 dBA+8.6 dBA22.6 dBA
Airflow76.7 CFM60.09 CFM-22%
PWM ControlYesYes
Rated Life300000 hours150000 hours
Max Power Draw2.4 W1.68 W
Connector Type4-Pin PWM4-Pin PWM
Cable Length500 mm200 mm
Warranty5 years-17%6 years
Source URLhttps://www.bequiet.com/en/casefans/3701https://noctua.at/en/nf-a12x25-pwm/specification

Verdict

be quiet! Silent Wings 4 120mm PWM High-Speed

8 / 10 Expert Rating

More airflow than the quiet-first competition, with a bearing rating built for a decade of running.

Noctua NF-A12x25 PWM

9 / 10 Expert Rating

The reference benchmark for 120mm fans — best-tested all-around performance and quietest in its class, with class-leading bearing longevity.

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